Zobrazeno 1 - 10
of 299
pro vyhledávání: '"Augusto Rivera"'
Publikováno v:
Molbank, Vol 2024, Iss 3, p M1876 (2024)
The synthesis and characterization of two novel diastereomeric Mannich bases was carried out from the reaction of the cyclic aminal (2R,7R,11S,16S)-1,8,10,17-tetraazapentacyclo[8.8.1.1.8,170.2,70.11,16]icosane 1 and p-cresol 2a and 4-methoxyphenol 2b
Externí odkaz:
https://doaj.org/article/1943d64aa65245f1993fe628c1c04663
Publikováno v:
Journal of Saudi Chemical Society, Vol 27, Iss 5, Pp 101714- (2023)
The title compound, C20H32N82+·2Br−·3H2O, was obtained by the reaction of 1,3,5,7-triazatricyclo[3.3.1.13,7]decane with 1,3-bis(bromomethyl)benzene in acetonitrile. The asymmetric unit contains a unique 1,1′-(benzene-1,3-diyldimethanediyl)bis(3
Externí odkaz:
https://doaj.org/article/eb749761cbc6486abfc5299e06350013
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 78, Iss 7, Pp 742-745 (2022)
The redetermined structure of 2-(2-hydroxyphenyl)-1,3-bis(4-methoxybenzyl)-1,3-diazinan-5-ol, C26H30N2O4, at 173 K has orthorhombic (Pbca) symmetry. It was previously described by Bolte et al. [ Private Communication (refcode EWICEV). CCDC, Cambridge
Externí odkaz:
https://doaj.org/article/1996db3208ed4d3492d8aac8c36829b7
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 73, Iss 11, Pp 1692-1695 (2017)
The asymmetric unit of the title co-crystalline adduct, 1,3,6,8-tetraazatricyclo[4.4.1.13,8]dodecane (TATD)–4-iodophenol (1/2), C8H16N4·2C6H5IO, comprises a half molecule of the aminal cage polyamine plus a 4-iodophenol molecule. A twofold rotatio
Externí odkaz:
https://doaj.org/article/4a0ff1df4d754ef49e72899a8ddfdd74
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 73, Iss 6, Pp 813-816 (2017)
The asymmetric unit of the title compound, C21H28N4O, consists of two unique molecules linked by an O—H...N hydrogen bond. The conformation of both C=N bonds is E and the azomethine functional groups lie close to the plane of their associated benze
Externí odkaz:
https://doaj.org/article/a0c483a89e0f43f0bdb8ca6765d70b29
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 73, Iss 6, Pp 832-834 (2017)
In the title compound, C26H24N2O2, the oxazine moiety is fused to a naphthalene ring system. The asymmetric unit consists of one half of the molecule, which lies about an inversion centre. The C atoms of the ethylene spacer group adopt an antiperipla
Externí odkaz:
https://doaj.org/article/7d42819d77ad4463be9dc9b81fdf8e9e
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 73, Iss 5, Pp 664-666 (2017)
The asymmetric unit of the title compound, C18H18I2N2O2, consists of one half-molecule, completed by the application of inversion symmetry. The molecule adopts the typical structure for this class of bis-benxozazines, characterized by an anti orienta
Externí odkaz:
https://doaj.org/article/9eece40147634446bc88a862172570a3
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 73, Iss 4, Pp 627-629 (2017)
In the title compound, C17H18N2O, the central carbon atom with the OH substituent and one of the (E)-benzylideneamino substituents are disordered over two sets of sites with occupancies of 0.851 (4) and 0.149 (4). The relative positions of the two di
Externí odkaz:
https://doaj.org/article/37024d812a894d12aaa72af3dbadd5a4
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 72, Iss 12, Pp 1731-1733 (2016)
The title Schiff base, C19H22N2O3, was synthesized via the condensation reaction of 1,3-diaminopropan-2-ol with 4-methoxybenzaldehyde using water as solvent. The molecule exists in an E,E conformation with respect to the C=N imine bonds and the dihed
Externí odkaz:
https://doaj.org/article/1baa12931f4e4e3181b7e8187bc9ba53
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 11, Pp 1356-1360 (2015)
In the title ternary co-crystalline adduct, C7H14N4·2C6H5NO3, molecules are linked by two intermolecular O—H...N hydrogen bonds, forming a tricomponent aggregates in the asymmetric unit. The hydrogen-bond formation to one of the N atoms is enough
Externí odkaz:
https://doaj.org/article/2b296062ad93442fa39b02d6cf7ad3e9